The establishment of EVISA is funded by the EU through
the Fifth Framework Programme (G7RT- CT- 2002- 05112).
Supporters of EVISA includes:
A statistical test of significance in which the
difference between two variances is tested. A variance is the square of
a standard deviation. The F-test is often used to compare the
imprecision of two analytical methods. The hypothesis being tested
(called a null hypothesis) is that there is no difference between the
two variances. If the calculated F-value is greater than the critical
value which is obtained from a statistics table, then the null
hypothesis is rejected. This means that a difference exists and that the
difference is statistically significant, or real. If the calculated
F-value is less than the critical value, the null hypothesis cannot be
rejected, therefore, there is no difference between the two variances
being tested, and the difference is not statistically significant.
The term "F-test" was found in the following pages: